mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-11 14:25:05 +00:00
011bee032a
While the previous method worked, it matches no other implementation including a reference implementation. The new implementation almost perfectly matches the reference implementation and uses oversampling to achieve the goal. This has the downside of limiting the blur size to just 64, but it is necessary in order to achieve correct results. Fixes #573
168 lines
5.7 KiB
C++
168 lines
5.7 KiB
C++
// Modern effects for a modern Streamer
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// Copyright (C) 2019 Michael Fabian Dirks
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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#pragma once
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#include "common.hpp"
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#include <mutex>
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#include <vector>
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#include "gfx-blur-base.hpp"
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#include "obs/gs/gs-effect.hpp"
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#include "obs/gs/gs-rendertarget.hpp"
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#include "obs/gs/gs-texture.hpp"
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namespace streamfx::gfx {
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namespace blur {
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class gaussian_data {
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streamfx::obs::gs::effect _effect;
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std::map<size_t, std::vector<float>> _kernels;
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public:
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gaussian_data();
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virtual ~gaussian_data();
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streamfx::obs::gs::effect get_effect();
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std::vector<float_t> const& get_kernel(std::size_t width);
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};
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class gaussian_factory : public ::streamfx::gfx::blur::ifactory {
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std::mutex _data_lock;
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std::weak_ptr<::streamfx::gfx::blur::gaussian_data> _data;
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public:
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gaussian_factory();
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virtual ~gaussian_factory() override;
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virtual bool is_type_supported(::streamfx::gfx::blur::type type) override;
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virtual std::shared_ptr<::streamfx::gfx::blur::base> create(::streamfx::gfx::blur::type type) override;
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virtual double_t get_min_size(::streamfx::gfx::blur::type type) override;
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virtual double_t get_step_size(::streamfx::gfx::blur::type type) override;
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virtual double_t get_max_size(::streamfx::gfx::blur::type type) override;
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virtual double_t get_min_angle(::streamfx::gfx::blur::type type) override;
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virtual double_t get_step_angle(::streamfx::gfx::blur::type type) override;
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virtual double_t get_max_angle(::streamfx::gfx::blur::type type) override;
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virtual bool is_step_scale_supported(::streamfx::gfx::blur::type type) override;
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virtual double_t get_min_step_scale_x(::streamfx::gfx::blur::type type) override;
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virtual double_t get_step_step_scale_x(::streamfx::gfx::blur::type type) override;
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virtual double_t get_max_step_scale_x(::streamfx::gfx::blur::type type) override;
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virtual double_t get_min_step_scale_y(::streamfx::gfx::blur::type type) override;
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virtual double_t get_step_step_scale_y(::streamfx::gfx::blur::type type) override;
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virtual double_t get_max_step_scale_y(::streamfx::gfx::blur::type type) override;
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std::shared_ptr<::streamfx::gfx::blur::gaussian_data> data();
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public: // Singleton
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static ::streamfx::gfx::blur::gaussian_factory& get();
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};
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class gaussian : public ::streamfx::gfx::blur::base {
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protected:
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std::shared_ptr<::streamfx::gfx::blur::gaussian_data> _data;
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double_t _size;
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std::pair<double_t, double_t> _step_scale;
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std::shared_ptr<::streamfx::obs::gs::texture> _input_texture;
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std::shared_ptr<::streamfx::obs::gs::rendertarget> _rendertarget;
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private:
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std::shared_ptr<::streamfx::obs::gs::rendertarget> _rendertarget2;
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public:
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gaussian();
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virtual ~gaussian() override;
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virtual void set_input(std::shared_ptr<::streamfx::obs::gs::texture> texture) override;
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virtual ::streamfx::gfx::blur::type get_type() override;
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virtual double_t get_size() override;
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virtual void set_size(double_t width) override;
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virtual void set_step_scale(double_t x, double_t y) override;
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virtual void get_step_scale(double_t& x, double_t& y) override;
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virtual double_t get_step_scale_x() override;
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virtual double_t get_step_scale_y() override;
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virtual std::shared_ptr<::streamfx::obs::gs::texture> render() override;
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virtual std::shared_ptr<::streamfx::obs::gs::texture> get() override;
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};
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class gaussian_directional : public ::streamfx::gfx::blur::gaussian, public ::streamfx::gfx::blur::base_angle {
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double_t m_angle;
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public:
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gaussian_directional();
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virtual ~gaussian_directional() override;
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virtual ::streamfx::gfx::blur::type get_type() override;
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virtual double_t get_angle() override;
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virtual void set_angle(double_t angle) override;
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virtual std::shared_ptr<::streamfx::obs::gs::texture> render() override;
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};
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class gaussian_rotational : public ::streamfx::gfx::blur::gaussian,
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public ::streamfx::gfx::blur::base_angle,
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public ::streamfx::gfx::blur::base_center {
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std::pair<double_t, double_t> m_center;
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double_t m_angle;
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public:
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virtual ::streamfx::gfx::blur::type get_type() override;
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virtual void set_center(double_t x, double_t y) override;
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virtual void get_center(double_t& x, double_t& y) override;
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virtual double_t get_angle() override;
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virtual void set_angle(double_t angle) override;
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virtual std::shared_ptr<::streamfx::obs::gs::texture> render() override;
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};
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class gaussian_zoom : public ::streamfx::gfx::blur::gaussian, public ::streamfx::gfx::blur::base_center {
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std::pair<double_t, double_t> m_center;
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public:
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virtual ::streamfx::gfx::blur::type get_type() override;
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virtual void set_center(double_t x, double_t y) override;
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virtual void get_center(double_t& x, double_t& y) override;
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virtual std::shared_ptr<::streamfx::obs::gs::texture> render() override;
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};
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} // namespace blur
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} // namespace streamfx::gfx
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